Cold Sintering Isomagnetic Dielectric NaCl-Nickel Zinc Ferrite Composite Ceramics
Cold Sintering Isomagnetic Dielectric NaCl-Nickel Zinc Ferrite Composite Ceramics
Blog Article
In this study, dense composites of xNaCl-(1−x)Ni0.5Zn0.5Fe2O4 (referred to as NaCl-NZO) and xH3BO3-(0.8−x)Ni0.5Zn0.
5Fe2O4-0.2NaCl (referred to as HB-NZO-NaCl) were prepared using the cold sintering process.The objective was to investigate the cold sintering procedure for fabricating ferrite composite ceramics with comparable permeability and dielectric constants suitable for radio-frequency electronic device applications.Optimal cold sintering conditions were determined as 200 °C/30 min/500 MPa with a relative density of 95% for NaCl-NZO and 120 °C/30 min/300 MPa with a relative density of 95.4% for HB-NZO-NaCl.
X-ray diffraction and scanning electron click here microscope analyses confirmed the absence of secondary phases.The resulting composite ceramics showed promising characteristics, with the 0.5NaCl-0.5NZO composition exhibiting a dielectric constant of 6.2 @ 100 MHz, dielectric loss of 0.
02 @ 100 MHz, permeability of 2.5 @ 100 MHz, and magnetic loss of 0.001 @ 100 MHz.Similarly, the 0.3HB-0.
5NZO-0.2NaCl composition displayed a dielectric constant of 5.9 @ 100 MHz, dielectric loss of 0.02 @ 100 bar drain board MHz, permeability of 5.1 @ 100 MHz, and magnetic loss of 5 × 10−4 @ 100 MHz.
These findings indicate potential applications in wireless communication.